Abu Abd al-Rahman al-Sulami said: Sayyiduna Ali (may Allah be pleased with him) came to a judge and asked: Do you know the abrogating and the abrogated (al-nasikh wa al-mansukh)? He said: No. So he (may Allah be pleased with him) said: "You have perished, and you have caused others to perish."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب آداب القاضي / 20360